| 摘要 |
The inventive gear device for a simultaneous translational and rotational motion in an arm is characterised in that it comprises a first mobile gear, a second optional gear, and a third gear enclosed into the first gear, the three gears being supported on a base. The first gear supports an arm that is extended from the central portion of the first gear to the exterior, and consists of a first and second element having a conical-shaped end portion and attached by this latter element to a knuckle, where the conical-shaped end portion of the second element includes teeth coincident with the teeth of the second gear. Such that, when the first gear is rotated provides a translational movement to the arm, which simultaneously rotates over its own axis, due to the geometry thereof, following the path delimited by the third gear; this latter element has a double motive, static or dynamic condition, which allows the translational and rotational movements of the arm to be carried out in a simul taneous manner or only the translational movement when the first and third gear are simultaneously rotated.
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